Mellingen: population and statistics
Mellingen has a population of 6,324 (2025) across 4.9 km², or 1,301 people per km². It ranks 323 of 2,115 municipalities by population. Its population is growing: +18.4% between 2015 and 2025.
- 6,324 residents
- 4.9 km²
- 1,301 people/km²
- 352 m
Key points
Among the 197 municipalities in Aargau, Mellingen ranks No. 30 by population.
Share of foreign nationals: 34.7% in Mellingen, compared with an average of 28.1% in Aargau and 27.7% nationally.
Installed photovoltaic capacity per 1,000 inhabitants: 536.9 kW in Mellingen, compared with an average of 997.1 kW in Aargau and 919.4 kW nationally.
A 1 kWp solar panel tilted at 37° generates about 1,152 kWh a year here.
Mellingen in numbers
Where is Mellingen?
Population of Mellingen over time
Mellingen had 5,343 residents in 2015 and 6,324 in 2025.
| Year | Population |
|---|---|
| 2020 | 5,865 |
| 2021 | 5,958 |
| 2022 | 6,019 |
| 2023 | 6,170 |
| 2024 | 6,319 |
| 2025 | 6,324 |
Did you know?
- “Share of foreign nationals”: higher than in 91% of municipalities.
- “Installed photovoltaic capacity per 1,000 inhabitants”: lower than in 91% of municipalities.
- Its area is roughly equal to 681 football pitches.
- Its population density is 5.6 times the national average.
- The nearest municipality is Wohlenschwil, 1.6 km away.
- The nearest more populous municipality is Wettingen (22,027 residents), 6.4 km away.
- A 4 kWp rooftop solar system here would generate about 4,608 kWh a year, roughly what an average household uses.
All indicators for Mellingen
Value for the municipality, then the regional average and the national median (for counts: regional and national totals). The gauge places the municipality between the lowest and highest value in the country.
Population
| Indicator | Mellingen | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 65 and over (2025) | 17.6% | 19.5% | 20.7% | ranked 1,446 of 1,811 |
Housing
| Indicator | Mellingen | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Dwellings (2026) | 2,894 | 355,613 | 4,927,050 | ranked 393 of 2,108 | |
| Dwellings in buildings built before 1946 (2026) | 15.8% | 16.6% | 23.3% | ranked 1,313 of 1,806 | |
| Dwellings in buildings built since 2001 (2026) | 36.1% | 30.9% | 25.3% | ranked 292 of 1,806 | |
| Share of single-family houses among residential buildings (2026) | 67.3% | 70.4% | 69.5% | ranked 1,028 of 1,806 |
Energy
| Indicator | Mellingen | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 63.8% | 66.6% | 53.5% | ranked 559 of 1,806 | |
| Heat pumps as main heating (2026) | 11.0% | 11.6% | 13.7% | ranked 1,135 of 1,806 | |
| Wood heating systems (2026) | 9.4% | 8.3% | 12.4% | ranked 1,102 of 1,806 | |
| District heating (2026) | 0.1% | 6.5% | 1.4% | ranked 1,483 of 1,806 | |
| Photovoltaic installations (2026) | 131 | 26,039 | 329,600 | ranked 857 of 2,108 | |
| Installed photovoltaic capacity per 1,000 inhabitants (2026) | 536.9 kW | 997.1 kW | 1,134 kW | ranked 1,639 of 1,806 | |
| Rooftop solar electricity potential (2026) | 35.6 GWh/year | 5,431 GWh/year | 64,783 GWh/year | ranked 552 of 2,114 | |
| Rooftop solar potential per inhabitant (2026) | 5,633 kWh/inh. | 7,302 kWh/inh. | 9,356 kWh/inh. | ranked 1,586 of 1,810 |
Economy
| Indicator | Mellingen | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Establishments (2024) | 364 | 47,193 | 728,011 | ranked 401 of 2,112 | |
| Entities listed in the commercial register (2026) | 449 | 46,143 | 762,757 | ranked 320 of 2,115 | |
| Entities in the commercial register per 1,000 inhabitants (2026) | 71.0 | 62.0 | 64.9 | ranked 669 of 1,811 | |
| Share of limited companies (AG, GmbH) among registered entities (2026) | 64.6% | 66.6% | 65.7% | ranked 996 of 1,808 | |
| Share of sole proprietorships among registered entities (2026) | 31.2% | 29.1% | 29.0% | ranked 706 of 1,808 |
Employment
| Indicator | Mellingen | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Jobs (2024) | 2,041 | 364,295 | 5,679,518 | ranked 457 of 2,111 | |
| Jobs per 1,000 inhabitants (2024) | 322.7 | 489.8 | 362.9 | ranked 1,067 of 1,810 | |
| Share of jobs in services (2024) | 73.2% | 69.1% | 63.6% | ranked 541 of 1,804 | |
| Share of jobs in industry and construction (2024) | 25.5% | 26.5% | 24.2% | ranked 821 of 1,776 |
Society
| Indicator | Mellingen | Aargau | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 34.7% | 28.1% | 18.9% | ranked 161 of 1,811 |
Sunshine and temperatures: Mellingen
Frequently asked questions
What is the population of Mellingen?
Mellingen has 6,324 residents (2025), ranking 323 of 2,115 municipalities.
How big is Mellingen?
Mellingen covers 4.9 km², with a density of 1,301 people per km².
Is the population of Mellingen growing?
Between 2015 and 2025, the population of Mellingen went from 5,343 to 6,324, a change of +18.4%.
Where is Mellingen?
Mellingen is in Aargau. It belongs to Bezirk Baden (district). Latitude 47.419, longitude 8.276.
Share of foreign nationals: what is the figure for Mellingen?
In Mellingen, “Share of foreign nationals” stands at 34.7% (2025), ranking 161 of 1,811 municipalities; the national median is 18.9%.
Installed photovoltaic capacity per 1,000 inhabitants: what is the figure for Mellingen?
In Mellingen, “Installed photovoltaic capacity per 1,000 inhabitants” stands at 536.9 kW (2026), ranking 1,639 of 1,806 municipalities; the national median is 1,134 kW.
How much electricity does a solar panel produce in Mellingen?
In Mellingen, a 1 kWp south-facing system tilted at 37° produces about 1,152 kWh a year.
Which municipalities border Mellingen?
The nearest to Mellingen are Wohlenschwil (1.6 km), Tägerig (1.7 km), Niederrohrdorf (2.2 km), Fislisbach (2.6 km), Birrhard (2.9 km).